Dictionary

To connect (an electrical conductor or device) to a ground.

To punish, especially a child or teenager, by forcing him/her to stay at home and/or give up certain privileges.

Example: Eric, you are grounded until further notice for lying to us about where you were last night!

To forbid (an aircraft or pilot) to fly.

Example: Because of the bad weather, all flights were grounded.

To give a basic education in a particular subject; to instruct in elements or first principles.

Example: Jim was grounded in maths.

(of an airman) Not allowed to fly.

(of a person, predicative) Confined to stay inside, typically by a parent, as a punishment.

(of a person) Mature, sensible with well-considered priorities.

Of or pertaining to an electrical conductor which is connected to earth; earthed.